Model #LD172589GP50

Optical instrument lens (NSN 6650-00-382-1835)

Description

Glass optical material.

Diameter
2.087 inches
Axial Thickness
0.394 inches and 0.177 inches
Compound Lensaxial Thickness
0.571 inches
Compound Lens Edge Thickness
0.401 inches
Equivalent Focal Length
7.587 inches
Back Focal Length
7.331 inches
Front Focal Length
7.468 inches
Refraction Index
1.5110 and 1.6490
Abbe Constant
63.500 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-3.183 inches and 4.921 inches
Element Right Surface Radius
-3.183 inches and -8.941 inches
Material
Glass, optical, mil-g-174, class 1, grade c
Material Specification
Mil-g-174, class 1, grade c military specification single material response
Fsc Application Data
Fire control, telescope, mk91, mod
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 12/04/2024